The Jewel quick release seatclamp uses an oversized ergonomic paddle design to make a secure fit easy to achieve on any bike.
NOTE: The size is the external diameter of the seat tube on the frame, not the diameter of your seatpost.
this is HUGE the lever is massive!! this is a bargain its so light and still strong it blew my mind up it was so big i went for black because it suited my paint job and its a very nice pearl black its so shiny!!!! again superstar a very well made product thumbs up all roud no problems at all well done!!! A******
Was very happy with the big lever until the bolt snapped on the other side, would prefer a more universal bolting system that eventualy ,in case of a brake-down, can be replaced, other than that very functional,bought it cause of the cold condition here high up in Norway, a big lever is easy to find and to open with gloves and frozen fingers. Vivid colours to!